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Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K

Publication ,  Conference
Renner, C; Fischer, ; Kent, AD; Mitzi, DB; Kapitulnik, A
Published in: Physica B: Physics of Condensed Matter
February 2, 1994

We report scanning tunneling spectroscopy investigations on in-situ cleaved superconducting Bi2Sr2CaCu2O8 single crystals. Although many investigators report reproducible tunneling studies on high temperature superconductors, there nevertheless remains uncertainties about the correct intrinsic shape of the tunneling spectra. We have been able to obtain higly reproducible spectra while scanning single crystal surfaces in many different areas and taking a spectra every 5Å along lines of several hundred Ångstroms. Furthermore, we show that the spectra are independent of modifacations of the barrier obtained by changing the tip/sample distance. The experimental density of states clearly shows some filling of the gap which does not fit with a BCS-like s-wave prediction, even if some scattering in the tunneling process is accounted for. © 1994.

Duke Scholars

Published In

Physica B: Physics of Condensed Matter

DOI

ISSN

0921-4526

Publication Date

February 2, 1994

Volume

194-196

Issue

PART 2

Start / End Page

1689 / 1690

Related Subject Headings

  • General Physics
  • 5104 Condensed matter physics
  • 0303 Macromolecular and Materials Chemistry
  • 0206 Quantum Physics
  • 0204 Condensed Matter Physics
 

Citation

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Renner, C., Fischer, ., Kent, A. D., Mitzi, D. B., & Kapitulnik, A. (1994). Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K. In Physica B: Physics of Condensed Matter (Vol. 194–196, pp. 1689–1690). https://doi.org/10.1016/0921-4526(94)91344-7
Renner, C., C. Fischer, A. D. Kent, D. B. Mitzi, and A. Kapitulnik. “Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K.” In Physica B: Physics of Condensed Matter, 194–196:1689–90, 1994. https://doi.org/10.1016/0921-4526(94)91344-7.
Renner C, Fischer, Kent AD, Mitzi DB, Kapitulnik A. Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K. In: Physica B: Physics of Condensed Matter. 1994. p. 1689–90.
Renner, C., et al. “Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K.” Physica B: Physics of Condensed Matter, vol. 194–196, no. PART 2, 1994, pp. 1689–90. Scopus, doi:10.1016/0921-4526(94)91344-7.
Renner C, Fischer, Kent AD, Mitzi DB, Kapitulnik A. Spatially resolved vacuum tunneling spectroscopy on Bi2Sr2CaCu2O8 by STM at 4.8K. Physica B: Physics of Condensed Matter. 1994. p. 1689–1690.
Journal cover image

Published In

Physica B: Physics of Condensed Matter

DOI

ISSN

0921-4526

Publication Date

February 2, 1994

Volume

194-196

Issue

PART 2

Start / End Page

1689 / 1690

Related Subject Headings

  • General Physics
  • 5104 Condensed matter physics
  • 0303 Macromolecular and Materials Chemistry
  • 0206 Quantum Physics
  • 0204 Condensed Matter Physics